Breakpoint instruction
This instruction generates a Breakpoint Instruction exception. The PE records the exception in ESR_ELx, using the EC value 0x3C, and captures the value of the immediate argument in ESR_ELx.ISS.
Within a guarded memory region, while PSTATE.BTYPE != 0b00, a BRK instruction will not generate a Branch Target exception and will generate a Breakpoint Instruction exception as normal. For more information, see PSTATE.BTYPE.
| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| 1 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | imm16 | 0 | 0 | 0 | 0 | 0 | |||||||||||||||
| opc | op2 | LL | |||||||||||||||||||||||||||||
constant bits(16) comment = imm16; if IsFeatureImplemented(FEAT_BTI) then SetBTypeCompatible(TRUE);
Internal version only: aarchmrs v2025-03_rel, pseudocode v2025-03_rel ; Build timestamp: 2025-03-21T17:41
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